I think you might need to add the 'conv=fdatasync' option to your benchmark there in order to get real results - otherwise you could just be looking at results

I think you might need to add the 'conv=fdatasync' option to your benchmark there in order to get real results - otherwise you could just be looking at results from the hosts cache: "dd if=/dev/zero of=test.tmp bs=4k count=1000000 conv=fdatasync" Even then, the host could be lying and telling your VPS that a write was successful when it was not actually written to the host disk. Still in the hosts disk cache, which means great performance but if the host ever crashes, all data on your VPS disk will likely be lost.